
The usual thread for Fedora 12 (Constantine) discussion.
Currently Fedora 12 Alpha is due August 25th.
Release schedule: https://fedoraproject.org/wiki/Releases/12/Schedule
If you want it now install Fedora 11 and follow the steps in this blog: Unable to update to rawhide – rpmlib(PayloadIsXz) Rawhide Watch
I currently have quad boot with Win7, Arch, Kubuntu 9.10 alpha and Fedora 12 alpha. Got a scare while repartitioning because Fedora 11 installer was causing "no boot image found" errors so precreating partitions with Kubuntu live image worked.
Mainly installed F12 to test the "presto" delta rpm feature whenever it gets enabled: Features/Presto - FedoraProject
Too bad delta deb feature will not make it in time for Karmic: Delta debs and using zsync for package updates - Ubuntu Forums